Editing Medical ultrasound (section)

=== Angiology (vascular) ===
[[Image:IVUS of CAD (1).png|right|thumb|Intravascular ultrasound image of a coronary artery (left), with color-coding on the right, delineating the lumen (yellow), external elastic membrane (blue) and the atherosclerotic plaque burden (green)]]
{{Further|Doppler ultrasonography|Intravascular ultrasound}}
In [[angiology]] or [[Blood vessel|vascular]] medicine, [[duplex ultrasound]]  (B Mode imaging combined with Doppler flow measurement) is used to diagnose arterial and venous disease. This is particularly important in [[neurology|potential neurologic problems]], where [[Carotid ultrasonography|carotid ultrasound]] is commonly used for assessing blood flow and potential or suspected stenosis in the [[carotid artery|carotid arteries]], while [[transcranial Doppler]] is used for imaging flow in the intracerebral arteries.{{citation needed|date=April 2022}}

[[Intravascular ultrasound]] (''IVUS'') uses a specially designed [[catheter]] with a miniaturized [[ultrasound]] probe attached to its distal end, which is then threaded inside a blood vessel. The proximal end of the [[catheter]] is attached to computerized [[ultrasound]] equipment and allows the application of [[ultrasound]] technology, such as a [[piezoelectric transducer]] or [[capacitive micromachined ultrasonic transducer]], to visualize the [[endothelium]] of [[blood vessel]]s in living individuals.<ref name="pmid21327914">{{cite journal | vauthors = Garcìa-Garcìa HM, Gogas BD, Serruys PW, Bruining N | title = IVUS-based imaging modalities for tissue characterization: similarities and differences | journal = Int J Cardiovasc Imaging | volume = 27 | issue = 2 | pages = 215–24 | date = February 2011 | pmid = 21327914 | pmc = 3078312 | doi = 10.1007/s10554-010-9789-7 }}</ref>

In the case of the common and potentially, serious problem of blood clots in the deep veins of the leg, [[ultrasonography of deep venous thrombosis|ultrasound]] plays a key diagnostic role, while [[ultrasonography of chronic venous insufficiency of the legs]] focuses on more [[superficial vein]]s to assist with planning of suitable interventions to relieve symptoms or improve cosmetics.{{citation needed|date=August 2022}}